
140 Game Development and Simulation with Unreal Technology
the vertices of the mesh on which the m aterial is applied with the same amount of
displacement. To have more control over the localities on the m esh, w e can supply a
texture through a Texture Sample input. If a texture is supplied to the World Po-
sition Offset channel, the effect of displacement will be calculate d from the texture
and applied to appropriate vertice s and location on the mesh.
Figure 4.14 shows how different values on the World Position Offset channel
affect the geometry of a mesh directly from the material. In this figure, the object on
the left has a mater ia l with no